Change a slow querySelector to a getElementById #583
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Also, please manually test this, as it didn't break on my end, but I'm not sure if there are bugs I'm not aware of. |
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We also get bugs filed mentioning slow downs with scrolling on various pages. Here one example: https://bugzilla.mozilla.org/show_bug.cgi?id=1684286 This PR is laying around for more than a year now, and should help making the extension more performant. @maxxcrawford can we please get it reviewed? |
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This is a comparison profile, the top track is the old behavior, the bottom is the new.
https://perfht.ml/2HrBpR0
/cc @maxxcrawford